Pool System Build-Up
- 1 Concrete Substrate
- 2 Crack Repair (if required)
- 3 ACTFLEX FLEXPLUS
- 4 ACTFLEX HYDROPLUG
- 5 ACTFLEX AT MESH
- 6 ACTFLEX 988 CWP (2 Coats)
- 7 Tile Adhesive
- 8 Pool Finish
ACTFLEX 700 PU Primer
or 4 interest-free payments with
The speed primer under ACTFLEX 929 SL and 929 HV. Touch dry in 30 minutes, membrane on within hours.
ACTFLEX 700 PU PRIMER is a single-pack, moisture-curing polyurethane primer for porous substrates under Forspec solvent-based membranes. It is the specified primer for ACTFLEX 929 SL and 929 HV, and the bonding agent for recoating old solvent-based PU membranes. One coat, no mixing, straight from the can. 4 L and 17 L.
Where to use it
- Porous substrates under Forspec solvent-based membranes, including the ACTFLEX moisture-cured PU range
- Under ACTFLEX 75FC and Forspec solvent-based joint sealants on dry internal surfaces
- Recoating and tying into existing solvent-based PU liquid membranes
- New and old concrete, renders, masonry, brickwork and timber
- Wet-area-grade fibre cement and compressed fibre cement sheet
Why waterproofers buy it
- Touch dry in as little as 30 minutes, waterproof in 3 hours, full cure in 6 hours
- One even coat. No multi-coat priming on porous substrates
- Penetrating film consolidates porous surfaces
- Translucent matte finish, so you can still see the substrate
- Brush, roller or approved spray
- 10 year Forspec product warranty
Coverage
One coat at 4 to 6 m² per litre, 60 micron nominal DFT. 4 L: approx. 16 to 24 m². 17 L: approx. 68 to 102 m². Overcoat once touch dry and within 24 hours, or re-prime.
Not for
Moisture control (it blisters and peels on a damp substrate, use ACTFLEX EP250 or MB200), water-based products, leaving exposed beyond 48 hours after full cure, or application outside 10 to 26°C. Do a staining trial on every substrate. Use an opened can the same day. Flammable liquid and vapour: no ignition sources, ventilate, and never store in pits or basements.
Touch dry at 20°C and 50% RH. Other times at 25°C and 50% RH.
Touch dry in as little as 30 minutes - the speed primer of the range
Single pack, one coat, no mixing ratios straight from the can
The specified primer for ACTFLEX 929 SL and 929 HV systems
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ACTFLEX 700 PU Primer
4 LT
The Waterproofing Shop
22/872 Canterbury Road
Roselands NSW 2196
Australia
How to Use
Technical Specifications
ACTFLEX 700 PU Primer
Sale price$88.00
Frequently bought together
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ACTFLEX 700 PU Primer $88.00
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ACTFLEX 600 PRIMER Hybrid $88.00 -
System Build-Up Guide
Correct application makes all the difference.
Retaining Wall System Build-Up
- 1 Concrete Substrate
- 2 Crack Repair (if required)
- 3 ACTFLEX MS PRO
- 4 ACTFLEX AT MESH
- 5 ACTFLEX 988 CWP (2 Coats)
- 6 Protection Board (Optional)
- 7 Drainage System
- 8 Backfill
Tank System Build-Up
- 1 Concrete Substrate
- 2 Crack Repair (if required)
- 3 ACTFLEX FLEXPLUS
- 4 ACTFLEX AT MESH
- 5 ACTFLEX 988 WMP (2 Coats)
- 6 Protective Coating (Optional)
- 7 Water
Technical overview
Key applications
- Priming porous substrates beneath Forspec solvent-based waterproofing membranes
- Priming beneath ACTFLEX 75FC and Forspec solvent-based joint sealants on dry internal surfaces
- Bonding agent for re-coating and tying into existing solvent-based polyurethane liquid membranes
- Consolidating primer for new and old concrete, renders, masonry, brickwork and timber
- Priming wet-area-grade fibre cement and compressed fibre cement sheeting
Surface suitability
- New and old concrete
- Render
- Masonry
- Brickwork
- Timber
- Wet-area-grade fibre cement and compressed fibre cement sheeting (per the host system TDS)
- Existing solvent-based polyurethane liquid membranes (sound, well-bonded, clean and dry, glossy surfaces abraded)
NOT a moisture or vapour barrier - substrate moisture causes the primer to blister and peel; specify ACTFLEX EP250 or ACTFLEX MB200 where moisture control is required. Never use under or with water-based products. Not UV stable - never leave the primed surface exposed beyond 48 hours after full cure. Staining may occur on some substrates - complete a sample trial area on every substrate first. Opened containers must be used the same day. Apply only between 10-26C ambient and substrate, never below 10C surface temperature. Flammable liquid and vapour - exclude all ignition sources during application and cure, ventilation mandatory, and never store in pits, depressions, basements or anywhere vapours can trap.
Calculate your coverage
You will need:
ACTFLEX 700 PU Primer
4Lr kit
0 Kits
Total coverage: 0 m²
This is an estimate only. Add 10% for wastage.
Technical Specifications
| Membrane Classification | Polyurethane Primer (solvent-based) |
| Chemical Base | Single-pack moisture-curing polyurethane resin |
| Cure Mechanism | Reacts with atmospheric moisture |
| Colour | Translucent matte, viscous liquid; solvent odour |
| Solids Content | Greater than 30% (volatile content less than 70% w/w)* |
| Density | 0.80-1.00 g/mL @ 25C* |
| Vapour Pressure | 3.8 kPa @ 25C* |
| Flash Point | Greater than 23C - flammable liquid and vapour |
| Touch Dry | 30 minutes @ 20C, 50% RH; 15 minutes @ 30C, 50% RH* |
| Waterproof Time | 3 hours @ 25C, 50% RH* |
| Full Cure | 6 hours @ 25C, 50% RH* |
| Overcoat Window | Once touch dry, maximum 24 hours - re-prime if exceeded |
| Nominal Dry Film Thickness | 60 microns, one coat |
| Coverage | 4-6 m2 per litre per coat, porosity dependent* |
| Number of Coats | One coat only |
| Application Temperature | 10-26C ambient and substrate; minimum 10C surface |
| Solvent Resistance (cured) | Good* |
| Pack Sizes | 1L, 4L and 17L |
| Usable Period After Opening | Use within the same day - moisture cured |
| Shelf Life | 6 months unopened, stored at 10-25C* |
| Hazard Classification | Hazardous Chemical; Dangerous Goods; Poisons Schedule S6 |
| * Typical Forspec R&D characteristic values - no accredited test reports exist for this product | |
Real Projects. Real Results.
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Before
After
Pool Renovation
Gold Coast, QLD
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Before
After
Below Ground Retaining Wall
Sydney, NSW
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Before
After
Concrete Water Tank
Perth, WA
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Before
After
Commercial Podium
Melbourne, VIC
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Before After
Swimming Pool Construction
Brisbane, QLD
Watch the install
Step-by-step from prep to top coat. Filmed on the tools, not in a studio.
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Frequently asked questions
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What is ACTFLEX 700 PU Primer for?
Compatibility700 PU Primer is a high-build moisture-curing polyurethane primer specifically for solvent-based PU membranes and joint sealants. Used over new/old concrete, render, masonry, timber, bricks, CFC sheeting, and Villaboard.
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Why specifically for solvent-based PU?
PerformanceThe 700 PU Primer chemistry is matched to solvent-based PU membranes (929 HV/SL series). It reactivates existing PU membrane surfaces, allowing fresh PU to bond to aged cured PU - critical for repair and overlay work.
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Coverage and cure?
InstallationCoverage is 4-6 m² per litre. Touch-dry in 30 minutes at 20°C, waterproof in 3 hours at 25°C, full cure in 6 hours. Single-component, no mixing required.
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Is it elastomeric?
CompatibilityNo - 700 PU Primer is non-elastomeric. It provides bond chemistry only. The flexibility comes from the PU membrane layer applied on top. Not for continuous UV exposure - must be overcoated.
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Shelf life and same-day use?
PerformanceSame-day use is possible after opening (moisture-reactive chemistry means once exposed, the can starts curing). Plan to use the full pail within the same project day, or seal carefully for short-term storage.